Abstract

Morocco produced more than 50000 tons of the chicken droppings of which its majority of 95% are used as source of amendment for agricultures without preliminary pre-treatment. At the time of the research of the physical, chemical and microbiological characteristics of this type of waste, we noticed that it presents potential risks of contamination of subsoil waters and surface. A higher content nitrogen (4,48%) which can be lost by leaching or streaming then is found partly in the ground water and surface waters thus causing a specific nitrogenised pollution and diffuse. The content of COT is of the order (16,5%) which can cause an organic pollution. The heavy ions and metals present a very high contents (Pb: 2,37 ; Zn: 196,35 ; Cu: 70,90 and K: 32,86 mg/kg), consequently presence of risk potential of dissolution of these elements in rain water and being to export towards the sources of water. The chicken droppings are charged in pathogenic bacteria mainly the staphilococca and enterobacteries which present contents very high with (114.108 and 154. 106 UFC/g). Consequently a real threat for waters ; This work opens new horizons for the search for treatment of this waste before it arrives at the source of water.